植物&动物 | 生态&环境 | 大脑&行为 | 健康 | 技术 | 科学&政策 | 进化 | 古生物学 | 细胞 | 分子 | 基因&蛋白 | 遗传&发育 | 生物化学 | 生物物理 | 免疫 | 人物&事件 | 微生物学 |
当前位置: Science » 植物&动物 » Science:狗狗在睡觉时能学习

Science:狗狗在睡觉时能学习

标签: 睡觉 学习
摘要 : 狗主人经常想知道,他们的爱宠睡觉时正在发生什么事情。一项最新研究显示,事实证明它们可能正在学习。
狗主人经常想知道,他们的爱宠睡觉时正在发生什么事情。一项最新研究显示,事实证明它们可能正在学习。 匈牙利研究人员利用英语短语而非15只宠物狗已经知道的匈牙利语,训练它们坐和躺下。随后,科学家将小电极固定在狗的头上,以记录它们在睡觉时的大脑活动。脑电图显示,在3个小时的睡眠期间,这些狗的大脑经历了简短但重复的慢波大脑活动时刻,每次持续0.5到5秒。 这种一阵阵的活动被称为睡眠梭状波,因为它们在脑电图记录中看上去像一连串快速且有节奏的波浪。这些脑电波在非快速眼动睡眠期间出现,并且被认为支撑了人类和小鼠的记忆、学习、普通智力和健康的衰老。不过,这是它们首次在犬类中得到详细研究。 同人类和小鼠一样,狗的睡眠梭状波发生在短周期内(9赫兹到16赫兹)。在人类和小鼠中,这些周期同记忆巩固存在关联。科学家还发现,每分钟出现的睡眠梭状波次数同狗在学习新的外语词汇时表现如何存在对应关系。研究人员在日前出版的《科学报告》杂志上报告了这一成果。 和人类一样,母犬每分钟经历的睡眠梭状波比公犬多,并且在测试期间表现得更好。约30%的母犬学会了新单词,而这一占比在公犬中约为10%。研究人员认为,这表明,犬类可作为更好地理解人类睡眠梭状波的模型。 原文链接: Brain scans show dogs learn when sleeping—just like people 原文摘要: Dog owners often wonder what—if anything—is going on when their pooches are sleeping. It turns out they may be learning, according to a new study. Researchers in Hungary trained 15 pet dogs to sit and lie down using English phrases instead of the Hungarian they already knew. Afterward, the scientists attached small electrodes to the dogs’ heads to record their brain activity while they slept. Electroencephalograms (EEGs) showed that during 3-hour naps, the dogs' brains experienced brief, repeated moments of "slow-wave" brain activity lasting several minutes. Nested within these slower oscillations, were "sleep spindles," bursts of activity lasting 0.5 to 5 seconds that look like a train of fast, rhythmic waves on EEG recordings—and are known to support memory, learning, general intelligence, and healthy aging in humans and rats. But this is the first time they’ve been studied in detail in dogs. Like those of humans and rats, the dogs’ sleep spindles occur in short cycles in the 9-hertz to 16-hertz range; in humans and rats, these cycles are associated with memory consolidation. The scientists also discovered that the number of spindle sessions per minute correlated with how well the dogs learned their new, foreign vocabulary, the researchers report this week in Scientific Reports. And—just like in humans—females had more spindle sessions per minute than males and performed better during testing. about 30% of the females learned the new words, compared with about 10% of the males. That suggests, the researchers say, that dogs can serve as models to better understand the function of our own sleep spindles. 来源: Science 浏览次数:0
我们欢迎生命科学领域研究成果、行业信息、翻译原创、实验技术、采访约稿。-->投稿
RSS订阅 | 生物帮 | 粤ICP备11050685号-3 ©2011-2014 生物帮 Science  All rights reserved.
优发国际